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- /*-
- * SPDX-License-Identifier: BSD-2-Clause
- *
- * Copyright (c) 1998 Doug Rabson
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
- #ifndef _ISA_ISAVAR_H_
- #define _ISA_ISAVAR_H_
- struct isa_config;
- struct isa_pnp_id;
- typedef void isa_config_cb(void *arg, struct isa_config *config, int enable);
- #include "isa_if.h"
- #include <isa/pnpvar.h>
- #ifdef _KERNEL
- /*
- * ISA devices are partially ordered. This is to ensure that hardwired
- * devices the BIOS tells us are there appear first, then speculative
- * devices that are sensitive to the probe order, then devices that
- * are hinted to be there, then the most flexible devices which support
- * the ISA bus PNP standard.
- */
- #define ISA_ORDER_PNPBIOS 10 /* plug-and-play BIOS inflexible hardware */
- #define ISA_ORDER_SENSITIVE 20 /* legacy sensitive hardware */
- #define ISA_ORDER_SPECULATIVE 30 /* legacy non-sensitive hardware */
- #define ISA_ORDER_PNP 40 /* plug-and-play flexible hardware */
- /*
- * Limits on resources that we can manage
- */
- #define ISA_NPORT 50
- #define ISA_NMEM 50
- #define ISA_NIRQ 50
- #define ISA_NDRQ 50
- /*
- * Limits on resources the hardware can actually handle
- */
- #define ISA_PNP_NPORT 8
- #define ISA_PNP_NMEM 4
- #define ISA_PNP_NIRQ 2
- #define ISA_PNP_NDRQ 2
- #define ISADMA_READ 0x00100000
- #define ISADMA_WRITE 0
- #define ISADMA_RAW 0x00080000
- /*
- * Plug and play cards can support a range of resource
- * configurations. This structure is used by the isapnp parser to
- * inform the isa bus about the resource possibilities of the
- * device. Each different alternative should be supplied by calling
- * ISA_ADD_CONFIG().
- */
- struct isa_range {
- uint32_t ir_start;
- uint32_t ir_end;
- uint32_t ir_size;
- uint32_t ir_align;
- };
- struct isa_config {
- struct isa_range ic_mem[ISA_NMEM];
- struct isa_range ic_port[ISA_NPORT];
- uint32_t ic_irqmask[ISA_NIRQ];
- uint32_t ic_drqmask[ISA_NDRQ];
- int ic_nmem;
- int ic_nport;
- int ic_nirq;
- int ic_ndrq;
- };
- /*
- * Used to build lists of IDs and description strings for PnP drivers.
- */
- struct isa_pnp_id {
- uint32_t ip_id;
- const char *ip_desc;
- };
- enum isa_device_ivars {
- ISA_IVAR_PORT,
- ISA_IVAR_PORT_0 = ISA_IVAR_PORT,
- ISA_IVAR_PORT_1,
- ISA_IVAR_PORTSIZE,
- ISA_IVAR_PORTSIZE_0 = ISA_IVAR_PORTSIZE,
- ISA_IVAR_PORTSIZE_1,
- ISA_IVAR_MADDR,
- ISA_IVAR_MADDR_0 = ISA_IVAR_MADDR,
- ISA_IVAR_MADDR_1,
- ISA_IVAR_MEMSIZE,
- ISA_IVAR_MEMSIZE_0 = ISA_IVAR_MEMSIZE,
- ISA_IVAR_MEMSIZE_1,
- ISA_IVAR_IRQ,
- ISA_IVAR_IRQ_0 = ISA_IVAR_IRQ,
- ISA_IVAR_IRQ_1,
- ISA_IVAR_DRQ,
- ISA_IVAR_DRQ_0 = ISA_IVAR_DRQ,
- ISA_IVAR_DRQ_1,
- ISA_IVAR_VENDORID,
- ISA_IVAR_SERIAL,
- ISA_IVAR_LOGICALID,
- ISA_IVAR_COMPATID,
- ISA_IVAR_CONFIGATTR,
- ISA_IVAR_PNP_CSN,
- ISA_IVAR_PNP_LDN,
- ISA_IVAR_PNPBIOS_HANDLE
- };
- /*
- * ISA_IVAR_CONFIGATTR bits
- */
- #define ISACFGATTR_CANDISABLE (1 << 0) /* can be disabled */
- #define ISACFGATTR_DYNAMIC (1 << 1) /* dynamic configuration */
- #define ISACFGATTR_HINTS (1 << 3) /* source of config is hints */
- #define ISA_PNP_DESCR "E:pnpid;D:#"
- #define ISA_PNP_INFO(t) \
- MODULE_PNP_INFO(ISA_PNP_DESCR, isa, t, t, nitems(t) - 1); \
- /*
- * Simplified accessors for isa devices
- */
- #define ISA_ACCESSOR(var, ivar, type) \
- __BUS_ACCESSOR(isa, var, ISA, ivar, type)
- ISA_ACCESSOR(port, PORT, int)
- ISA_ACCESSOR(portsize, PORTSIZE, int)
- ISA_ACCESSOR(irq, IRQ, int)
- ISA_ACCESSOR(drq, DRQ, int)
- ISA_ACCESSOR(maddr, MADDR, int)
- ISA_ACCESSOR(msize, MEMSIZE, int)
- ISA_ACCESSOR(vendorid, VENDORID, int)
- ISA_ACCESSOR(serial, SERIAL, int)
- ISA_ACCESSOR(logicalid, LOGICALID, int)
- ISA_ACCESSOR(compatid, COMPATID, int)
- ISA_ACCESSOR(configattr, CONFIGATTR, int)
- ISA_ACCESSOR(pnp_csn, PNP_CSN, int)
- ISA_ACCESSOR(pnp_ldn, PNP_LDN, int)
- ISA_ACCESSOR(pnpbios_handle, PNPBIOS_HANDLE, int)
- extern void isa_probe_children(device_t dev);
- void isa_dmacascade(int chan);
- void isa_dmadone(int flags, caddr_t addr, int nbytes, int chan);
- int isa_dma_init(int chan, u_int bouncebufsize, int flag);
- void isa_dmastart(int flags, caddr_t addr, u_int nbytes, int chan);
- int isa_dma_acquire(int chan);
- void isa_dma_release(int chan);
- int isa_dmastatus(int chan);
- int isa_dmastop(int chan);
- int isa_dmatc(int chan);
- #define isa_dmainit(chan, size) do { \
- if (isa_dma_init(chan, size, M_NOWAIT)) \
- printf("WARNING: isa_dma_init(%d, %ju) failed\n", \
- (int)(chan), (uintmax_t)(size)); \
- } while (0)
- void isa_hinted_child(device_t parent, const char *name, int unit);
- void isa_hint_device_unit(device_t bus, device_t child, const char *name,
- int *unitp);
- int isab_attach(device_t dev);
- #endif /* _KERNEL */
- #endif /* !_ISA_ISAVAR_H_ */
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